1979698196 has 18 divisors (see below), whose sum is σ = 4030100298. Its totient is φ = 848442000.

The previous prime is 1979698177. The next prime is 1979698211. The reversal of 1979698196 is 6918969791.

It can be written as a sum of positive squares in only one way, i.e., 1920192400 + 59505796 = 43820^2 + 7714^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5050055 + ... + 5050446.

It is an arithmetic number, because the mean of its divisors is an integer number (223894461).

Almost surely, 2^1979698196 is an apocalyptic number.

It is an amenable number.

1979698196 is an abundant number, since it is smaller than the sum of its proper divisors (2050402102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1979698196 is a wasteful number, since it uses less digits than its factorization.

1979698196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100519 (or 10100510 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 65.

The square root of 1979698196 is about 44493.7995230796. The cubic root of 1979698196 is about 1255.6434314817.

The spelling of 1979698196 in words is "one billion, nine hundred seventy-nine million, six hundred ninety-eight thousand, one hundred ninety-six".